Cold Sore Symptoms Occur in Stages
Filed Under Canker and Cold Sores |
The first cold sore symptoms a person typically notices are tingling or itching sensations in the area from which the blister will eventually emerge–this is referred to as the “prodrome,” or tingling stage. Left untreated, the blister will usually form on the second or third day. There may only be one fluid-filled blister, or there could be a cluster of smaller blisters that are raw and painful. Eventually, the blister will crack open and the fluid will drain. This weeping stage typically occurs on the fourth day of the outbreak, and is followed by the crusting stage during days five through eight, when an unsightly yellow or brown crust can covers the area. During the ninth through twelfth days of the outbreak, a series of scabs grow over the area and are shed as it progresses through the healing. This happens continuously until the blister totally heals.
What are the stages of a cold sore?
Cold sores, untreated, can last up 14 days. Beginning treatment at the first sign of tingling can reduce the time to as little as 2-4 days. Beginning treatment after the blister appears can also significantly reduce the time and degree of pain.
Day 1: Prodrome (tingle) stage - Before a blister appears, one usually feels a tingling, itching or burning sensation beneath the skin, usually around the mouth or the base of the nose. This is the best time to start treatment. (1)
Days 2 to 3: The blister(s) appear.
Day 4: Ulcer or weeping stage. This is when the blister opens up revealing a reddish area. One is most contagious and in the most pain. (2)
Days 5 to 8: Crusting stage. The blisters dry up and a crust forms which is yellow or brown in color. Do not pick at this crust. (3)
Days 9 to 14: Healing stage. A series scabs will form over the sore, each smaller than the previous one until the cold sore is completely healed.
